Adding and listing machine.



.J. KILPATRICK.

ADDING AND LISTING MACHINE. APPLlCATlON FILED AUG-13. 1912.

Patented Sept. 7, 1915.

H SHEETS-SHEET l.

w. 1. KILPATRICK. ADDING AND LISTING MACHINE.

APPLICATION FILED AUG-13. I912.

Patented Sept. 7, 1915.

I1 SHEETS-SHEET 2.

W. I. KILPATRICK.

ADDING AND LISTING MACHINE.

APPLICATION FILED AUG. I3, I9I2.

1 1 52,5 1 7 Patented Sept. 7, 1915.

II SHEETS-SHEET 3- W. J. KILPATRICK. ADDING AND LISTIQNG MACHINE.

APPLICATION FILED AUG 13, 1912.

Patented Sept. 7, 1915.

- ll SHEETS-SHEET 4.

w.1. KILPATRICK.

ADDING AND LISTING MACHINE.

APPLICATION FILED AUG-13.1912.

1,152,517. PatentedSept. 7, 1915.

II SHEETS-SHEET 5.

I L .l (9/ w. J. KILPATRICK.

ADDING AND LISTING MACHINE.

APPLICATION FILED AUG- I3. I912.

PatentedSept. 7, 1915.

ll SHEETSSHEET 6.

W. .I. KII -PATRICK. ADDING AND LISTING MACHINE.

APPLICATION FILED AUG. 13. 1912.

Patented Sept. 7, 1915.

ll SHEETS-SHEET 7.

W em.

W. I. KILPATRICK.

ADDING AND LISTING MACHINE. APPLICATION men 'AUG. 13. 19m.

Patented Sept. 7, 1915.

II SHEETS-SHEET 8.

W. J. KILPATRICK.

ADDING AND LISTING MACHINE.

APPLICATION FILED AUG- 13. 1912.

Patented Sept. 7, 1915.

ll SHEETS-SHEET 9.-

W. I. KILPATRIQK.

ADDING AND LISTING MACHINE.

APPLICATION FILED AUG- I3. 1912.

1,152,517. PatentedSept. 7, 1915.

II SHEETS SHEET I0.

W. J, KILPATRICK.

ADDING AND LISTING MACHINE.

APPLICATION EILED AUG-13. 1912.

1,152,517. PatentedSept. 7, 1915.

H SHEETS-SHEET H.

LOT F'APK NUMBER. TAX msooum NET MAwnmmcE TOTAL CHECK NUMBER PIECE WORK DAY WORK OTAL DEDUCTIONS TOTAL 1500 385 1 ass 2.00 1 6.85 1700 150 16.50 1.00 15.50 19.00 50 13.50 50 18.00:

51.00 5.8.5 5;.a5* 35o 50.35: Jv\

3% SALES flcfflgscgvj zoaoeaoo iii/677207 UNITED STATES PATENT OFFICE WILLIAM J KILPATRICK. F DETROIT. MICHIGAN, ASSIGNOR TO BURROUGHS ADDING MACBINE COMPANY. OF DETROIT, MICHIGAN.

ADDING AND LISTING MACHINE.

Specification of Letters Patent.

Patented Sept. 7, 1915.

Application filed August 13, 1912. Serial No. 714,799.

ticularly to the tabulating type of adding and listing machine. that is to say, a machine which. in addition to the usual equipment for adding, listing and total printing, has a laterally movable paper carriage and means for automatically stepping the same from one columnar position to another.

The general purpose of the present invention is to considerably enlarge the capabilities of a machine of this type and to pro- -,vide for the doing of a greater variety of tabitlaiting work through automatic action. together with varied control of accumulation or adding. Thus,the invention provides for combining in one organism duplex accumulators and mechanism by which the paper carriage maybe caused to autoinatically step from column to column forcrosstabulating purposes. the duplex accumulators being under control of the tahulating 3O mecha ii isiii andt-l'iej invention also, provides 1 for controlling a variable split, OrV- cipher" cut-out equipment by such character of tabulating mechanism. (The above quoted phrases are employed in this art to denote an equipment whereby the printing mechanism may be subdivided so that two items may be printed simultaneously on the same' horizontal line.)

An early example of the split or cipher 0 cut-out is disclosed in the patent of Heber': C. Peters. 1,094,012 issued April 21, 1914,, which also affords an example of an auto-.1 niatic eross-tabulating mechanism applied. to a' standard type of adding and listing" machine. and that application extends to a said l eter's p'atentin that-the latter shows control by the tahulatingimechanism of the splitting or *subdividing of the printing mechanism at asingle point, whereas by the present inven proazi'sionis made for effecting a successioiiT-bf' splits at difleren't points under control of the tabulating mechanism.

As to duplex accumulators, reference may be had to United States Patent 919,656, issued April 27th. 1909, on the invention oi Jesse (i..\'inceiit and Nelson \Vhite, also to Patent No. 1,048,249 issued Dec. 24, 1912 on the later invention of Nelson White of a duplex accumulating, arrangement, similar to that disclosed in the said Vincent-\Vhite patent. but combined with an automatic cross-tabulating arrangement. The principal difference between the-combination disclosed in said \Vhite patent and my combination of cross-tabulating and duplex accumulating means is that Wliitesi cross-- tabulatiiig arrangement is confined to twocolumn or soaalled shuttle work, whereas my. invention provides for the stepping of the paper carriage from column to column throughout'a series of three or more colum- -iiar positions. accompanied by automatic control of the duplex accumulating arrangement.

It will be understood that the term shuttlc" signifies an arrangement whereby the paper carriage reciprocates between two columnar positions. being shifted first one way and then the other in successive oper ations of the machine. See U. S. Patent 924,118 issued June 8, 1909, on the invention of said Yinccnt and one Russell E. Benner.

My invention embraces such advanced type of cross-tabulating arrangement as disclosed in Patent No. 1.04:6,546 issued Dec. 10. 1912. on the invention of said Benner wherein the paper carriage is automatically propelled from column to column, moving from right to left, by power stored up in the initial stroke of the prime mover, and is then automaticallyrun back to its original position. moving from left to right as an incident to the operation of the machine with the carriage in its final or left-most position. In this connection my present invention extends to an improvement for preventing a release and restoration to normal of the carriage holding detent until the carriage has returned all the way home. thus avoiding a ditiiculty that has been encountered in the use of this character of mechanism through interference with the return of the paper carriage, as. for example, by the buckling of the paper.

The present invention extends to various other features calculated to give the machine a wider range of usefulness, such as special manipulative devices for suspending at will one or more automatic functions; also various safeguards against mis-operation or derangement.

\Vith the above indicated objects in view, and others of a minor character to be hereinafter pointed out, the invention consists in certain novel features of construction and combination of elements, the essentials whereof will be recited in appended claims of varying scope and Cllill'ilt'itfil, and a preferred form of embodiment of which, illustrated in the accompanying drawings, will now be described in detail.

of said drawings, Figure- 1 represents in left side elevation (with inclosing casing omitted and base casting, frame studs, and rods in section) an adding and listing machine of the well-known Burroughs type equipped to embody the present invention, all parts being shown at normal; Fig. 2 is a similar right-hand elevation of the machine; Fig. 2 is a detail horizontal section taken substantially on the line 2 of Fig. 2; Fig. 3 is a rear elevation of the machine, abbreviated as to its top portion; Fig. 1 is a left side elevation of the accumulator con trolling mechanism under a condition obtaining when the lower one of the two accumulators is active; Fig. 4: is a detail corresponding with the extreme left-hand portion of Fig. 1 and denoting interchangeability of cam rollers on the paper carriage; Fig. 1* is a detail corresponding with the central portion of Fig. 1 and illustrating the effect of the initial stroke of the prime mover upon the accumulator shifting devices; Fig. 4 is a similar view illustrating the condition when the upper one of the two accumulators is active; Fig. 5 is an elevation similar to Fig. 4, but illustrating displacement of the accumulator shifting devices; Fig. 5" is a cross-section taken on the line 55 of Fig. 5; Fig. (i is a plan view of part of the printing mechanism, including the devices for effecting successive splits at different points under control of the tabulatingmechanism; Fig. 7 is a front elevation of some of the same parts,'together with indexing devices at the front of the machine; Fig. 8 is a sectional left side elevation of parts illustrated in Figs. (3 and 7; Fig. 8 is a sectional detail taken on line 8"8 of Fig. 8; Fig. 9 is a. sectional elevation of one set of printing devices. to gether with splitting and hammer blocking elements; Fig. 10 is a sectional rear elevation illustrating the tabulating condition, e. the relation of parts when the carriage is at an intermediate columnar position; Fig. 11 is a horizontal section taken on line 1111 of Fig. 10; Fig. 12 is a section taken substantially on the line 12-12 of Fig. 11,

some parts within the range of the section line being omitted for the sake of clearness; Fig. 13 is a vertical sectional view on the line 1313 of Fig. 11; Fig. 11 is a view similar to Fig. 10, but illustrating the condition when the carriage is in the final columnar position and-the prime mover has made its initial stroke; Fig. 15 is a detail sectional view taken substantially on the l ne 15-15 of Fig. 14, though not including all the parts in the range of the section line; Fig. 11) is a. view similar to Fig. 15, but showing the finger which appears in cross section at left of Fig. 1 1 instead of the finger appearing in cross section at the middle of said figure; Fig. 17 is a view similar to Figs. 10 and 14 illustrating a third step in the tabulating operation, to wit, the condition that obtains when the carriage is released for the return to normal at the conclusion of the final or return stroke of the prime mover-this view also illustrating connections for automatically restoring to normal the automatically variable split mechanism; Fig. 18 is a horizontal section taken substantially on the line 18-18 of Fig. 17: Fig. 19 is a vertical cross section somewhat on the order of Figs. 15 and 16, but illustrating the relation of parts when the carriage has returned to normal from the position indicated in Fig. 17, a different controlling finger therefore a ipearing than in either of Figs. 15 and 16; *ig. 20 shows this different controlling finger in cross section, together with some associated parts in elevation, the section being taken substantially onthe line 20 20 of Fig. 19; Fig. 21 is a sectional left side elevation illustrating eliminating or non-adding connections controlled by the paper carriage and also a visual signal arrangement for showing whether the condition. is an adding or a nonadding one; Fig. 21 is a fragmentary top plan view of the keyboard where this signal is located. showing the word Add displayed; Fig. 22 is a view similar to Fig. 21, but illustrating the non-adding condition; Fig. 22 is a corresponding fragmentary plan view of the keyboard: and Figs. to 25 show various examples of work of which the machine of my invention is capable.

In view of the disclosures in the prior patents already mentioned and many other patents of the prior art, it will not be necessary in this specification to describe in detail the mechanism that goes to make up the machine proper. nor to point out the particulars of the now well-known Burroughs duplex accumulator arrangement. It will suiiice to designate a few of the familiar elements, such as the amount keys, 291; total and subtotal keys. 265 and 265 adding racks 610; upper accumulating pinions, 618; lower accumulating pinions, 618; pitman, 914, for the upper accumulator; pitand shi'l'table to court with either of said pitmen: and controlling lever 1 also coacting with said pitmen and coupled to the link 911. As fully described in said Vincent-White patent and said Nelson White patent, the shifting of the lever 10 determines whether one set of accumulating pinions or the other shall coact with the racks 610. When the lever is rearward as to its upper arm (Fig. 1), the upper accumulator is the active one, and when the lever is forward as to its upper arm (Fig. 4), the lower accumulator is the active one.

Automatic accumulator shift.For the purposes of my present invention, I provide means for shifting from one accumulator to the other in the successive operations of the machine, not, as in the said NelsonlVhite patent, by action of carriage reciprocating means, but through connection with actuating elements of the machine proper, thus the familiar rocking arm 813, which carries the wiper pawl 821, has its roller stud 16 overlying and normally in contact with a lever 17 which is pivoted upon a frame stud 17 at its rear end, and is conncted at its forward end with the stud 16 by a spring 17", as shown in Figs. 1 and 4. Upon this lever 17 intermediate its ends there is pivotally mounted a thrust piece 18, which is adapted to act upon a rocking plate 19 to swing it one way or the other. This plate has an upwardly extending arm 19 which is connected by a link 20 to the controlling lever 10.

lVhen the upper accumulator adjustment obtains. as illustrated in Fig. 1, a roller stud 18 carried by the thrust piece 18 seats in a notch 19 at the rear part of the under edge of the rocking plate 19, as illustrated by dotted lines in Fig. 1, whereas when the lower accumulator adjustment obtains said roller seats in a similar notch 19 at the forward part of the under edge of said plate, as shown in Fig. 4. A centralizing spring 18" connects the thrust piece 18 with the lower end of a downwardly projecting arm of the lever 17 and when, upon the prime mover making its initial stroke, the arm 813 forces down the lever 17, the thrust piece will straighten, as shown in Figs. 4" and 4, so that its roller stud 18' will pass to one side or the other of a V-shaped projection 19 of the rocking plate 19, which pro ection intervenes between the notches 19" and 19. Therefore, upon return of the lever 17, accompanying the final or return stroke of the prime mover, the roller stud 18 will not reengage the notch which it occupied at the beginning of the operation, but will pass into engagement with the other notch and rock the plate 19 b action against the substantially radial si e of the notch. Fig. 4

shows the lever 17 depressed and the thrust piece 18 straightened whereby its roller stud is thrown to the rear of the apex of the V- shaped projection 19, so that upon the return of the lever 17 said stud will seat in the notch 19 and rock the plate 19 to the upper accumulator position illustrated in Fig. 1; and Fig. 4 shows the plate in that position and about to be rocked by the thrust piece into the lower accumulator position,--being the converse of the condition illustrated in Fig. 4. It will be clear from the above that, in the absence of any adjustment to prevent it, the two accumulators will be alternately active in the successive operations of the machine. This is desirable for some classes of work, but not for others, and provision is made, as hereinafter explained, for controlling the effectiveness of this accumulator shift arrangement by columnar position of the carriage, and also by certain special keys.

The spring connection between the lever 17 and the operating arm 813 is employed on account of the desirability or necessity of delaying the shift until movement of the actuator elements of the machine proper is over, or nearly over, an interlocking arrangement being employed to prevent shifting the controlling lever 10 until such time. Therefore, during the return stroke of the operating arm 813, the spring 17 is stretched after the roller stud 18 seats itself in the notch of the plate 1 and until the interlocking action above mentioned is over.

The interlocking mechanism is illustrated in Figs. 1 and 2 and comprises a short arm 21 forked to embrace a stud 10 on the controlling lever 10 (Fig. 1), and secured to a rock shaft 201, which, at the opposite side of the machine (Fig. 2), carries an arm 21 having a segment-shaped outer portion with angular end edges. A bell-crank lever 22 is pivoted to a frame stud 22", and one arm of this lever carries a stud 22* coacting with the arm 21, the other arm of the lever co-. acting with a stud 311' on the familiar full stroke sector 311. A spring 22 connects the upper arm of the bell-crank lever with the shaft 201 and holds the stud 22 against one or the other end edge of the segment on the arm 21. A notch 22' in the lower arm of the bell-crank lever normally alines with the stud 311 so that the arm 21 may shift, but as soon as the full stroke sector 311 moves, its stud '311 passes down in front of an elongated extension of the bell-crank lever, thereby locking the latter and so preventing shifting of the arm 21" until the full stroke sector is back in normal position again. Vice versa, movement of the full stroke sector cannot take place while the controlling arm 10 is being shifted, for during this shifting the concentric rear edge of the arm 21 is riding upon the stud 22", holding the bell crank lever out of normal and its notch 22 engaged with the stud 311.

Disabling the acclmwlato-r shift by the paper mrre'aga-In order to prevent the above described action of the accumulator shift. it is only necessary to prevent coaction between the roller stud 18 and the rocking plate 19. Therefore a shield or guard plate 23 is mounted alongside the plate 19 slotted for engagement with a stud 19 (Figs. 5 and 5) carried by the arm 19* of said rocking plate, and further slotted to embrace the shaft 501 upon which the plate it) rocks. This shield or guard plate is normally upheld by a spring 23 which connects it with the upper extremity of arm 19, as shown in Fig. 5*, and normally the acting portion of the plate, which is substantially segmental in form, is withdrawn so as not to interfere with the coaction of the stud 18 and the rocking plate 19. However, the thrusting of the shield plate downward to such position as illustrated in Fig. 5, projects its segmental portion beyond the plate 19 so that the roller stud 18 is prevented from reaching the latter, and, upon return of the lever 18 under actuation of its spring 17", said roller stud will simply travel along the under edge of the plate 23, the spring 18 simply stretching a little more than it otherwise would while the rockplate 19 remains immovable.

For the purpose of setting the shield plate to effective position, there is pivotally mounted upon the back panel 2 of the machine casing a jointed arm arranged to coact with a roller stud 23 carried by the plate 23. This jointed arm comprises a forward section 24, curved (except for a horn-like extension 24 Fig. 4) so as to be normally concentric with the plate and of sufiicient extent to preserve its engagement with the stud 23 under both adjustments of the rocking plate 19. This forward section 24 is pivoted at 24 to a rear section 24 which is secured to a rock shaft 25 in bearings upon said back panel. A spring 24 connects a branch of the arm section 24 with a branch 24 of the arm-section 24, and a lip 24 on the latter extends under the arm-section 24". This sectional construction of the arm is merely for the purpose of permitting the swinging back of the panel 2, which, as usual, is hinged to the base casting 3 at the point designated by the numeral 2 (Fig. 1) and the horn-like extension 24 serves merely to insure reengagement of the arm with the roller when said back panel is swung forward into place again, the under cam-like edge of said horn riding upon the roller.

There is secured to the shaft 25 some distance to the left of the arm 24, as the parts are seen in Fig. 18, a short forwardly projecting arm 26 from which is suspended a link 27 (Figs. 4 and 5). The latter at its lower end is jointed to an arm 28 extending a right angles to the arm 26, and secured to a short shaft 29 which is journaled in a bearing 29 secured to the back panel 2. There is secured to the rear end of said shaft 29 an arm 30 which extends in the same general direction as the arm 28, and is offset rearwardly, as shown at 30 (Fig. 18), and thence projects upwardly and further to the left, its upper portion 30 constituting a cam piece (Fig. 3). Between the end plates 170 of the main frame of the laterally shifting paper carriage (Fig. 3), there is dctachably mounted a rod 31 which carries an adjustable bracket 32 with a roller 33 adapted to ride upon the said cam piece and thereby rock the arm 30 and shaft 25, and so depress the plate 23 with the effect already described.

The rod 31 is grooved throughout its length and the bracket 32 is adapted to slide upon it and carries a set-screw 32 so as to be settable at any desired point along the rod. This is of course desirable in order to provide for varying kinds of work which would call for disabling of the accumulator shifting mechanism at one or another point in cross tabulating. The detachability of the rod 31 is advantageous where it is desired to preserve some certain adjustment of one or more brackets upon the rod and save resetting them when the same sort of work is to be resumed after some other and different work has intervened calling for a different setting of brackets. In such a case the rod 31 would be replaced by a similar rod with one or more brackets set at appropriate places. The rod is made detachable by having squared portions 31' at the ends fitting notches in the carriage end plates 170 as illustrated in Fig. 1, said rod having projecting studs 31 engaged by latches 33 pivoted upon the said end-plates 170.

Disabling accumulator shift by special- Zrey.-Alined with the shaft 25 and similarly journaled in bearings upon the back panel 2 is a rock shaft 34 (Fig. 18), which at its right-hand end as the part here appears, carries an arm 34 having a stud 34 which projects in rear of an arm 25 fastened to the shaft 25 (Fig. 8). To the opposite end of said shaft 34 (Fig. 18) is secured a forwardly projecting arm 34 carrying a stud 34 underlying the widened lower end 35' of a key stem 35, (Fig. 2) which is of irregular shape and has a portion projecting through the keyboard and surmounted by a key 35". This key stem 35 is slotted at an intermediate point to embrace a frame stud 35. Obviously depression of the key rocks the shaft 34 and that shaft rocks the shaft 25 with the same effect as the rocking of the latter shaft by the aforesaid lever 30. The key 35 is upheld normally by a spring 35 and the stem has a notch 35 to engage under the upper keyboard plate 203 so that the key may be caught down and so held indefinitely. The spring 35 pulls upon the stem 35 both upwardly and rearwardly and the stem may rock. slightly upon the frame stud 35".

Elimination or non-adding.-It is a familiar proposition in the'art to rovide for printing without adding and this has been done both by equipping the machine with a special key and by arranging for the shifting carriage to effect the non-adding adjustment. It is further a familiar proposition to accom lish the elimination in a machine of the urroughs type by disabling the wiper pawl 821 so that upon return of the rock arm 813 that pawl will not act to engage adding pinions with racks. The elimination is accomplished in that manner in the machine here shown. Thus there is mounted to-rock upon'the shaft 600 a tappet piece 40 (Figs. 1, 21 and 22) normally held rearwardly by a spring 40" so as to not interfere with the action of the wiper pawl 821 but adapted when rocked in opposition to the spring to be interposed in the path of the wiper pawl so as to prevent its co-action with the rear stud 961 of the lever 913. There is the familiar elimination key 265 which effects the rocking of said tappet piece by the action of a lug 265 (F ig. 21) upon a yoke portion 40" of the tappet piece, the stem of the key being slotted to embrace a guiding frame stud 240". In addition to this there is rocking of said tappet piece by the paper carriage either by the same roller 33 which disables the accumulator shifting mechanism or by a similar but narrower roller such as that shown in Fig. 4 and designated 33', though that particular roller there illustrated is designed to disable the accumulator shift without affecting the registration. In a bearing 41 secured to the back panel and similar to but longer than the bearing 29, there is journaled a shaft 4:2 to the rear end of which is secured an arm 43 (Fig. 3) which extends upward and to the left as viewed from the rear, being of cam formation at its upper part for co-action with such a roller. To the inner end of said shaft 42 is secured an arm 44 extending oppositely to the arm 43 (Fig. 18) and adding condition. Therefore I have provided a visual signal in the form of a plate 50 sliding under a slot in the upper keyboard plate 203 (Fig. 21), said )late being inscribed Add and Non-add (Fig. 21 and Fig. 22). The said plate is fastened to a post 50 mounted upon a sliding strip 50 which is suitably guided under the lower keyboard plate 202. At an intermediate point the strip is slotted to receive the upper end of a lever 51 which is pivoted upon the shaft 600 adjacent the tappet piece 40 and has a lower arm 51 bifurcated to embrace a stud 40 upon the tappet piece. When the latter is at normal its stud 40 engages the rear fork of the bifurcated arm 51 and holds the strip 50 forward so that the plate 50 displays the word Add. Wlen the tappet piece is rocked to the eliminating position its said stud acts upon the forward fork of the bifurcated arm and shifts the strip 50 rearward so that the plate 50 displays the inscription Non-add.

Shifting the cawz'age from column to colum/n.Between the carriage end plates 170 there is mounted another longitudinally grooved rod 60 (Fig. 3) on which are adjustably secured certain forwardly projecting fingers which coact with a carriage shifting dog or'pawl 61. The latteris pivoted intermediate its ends upon an ear of a reciprocating bar 62 which extends across the rear of the machine guided between rollers 63 (Fig. 3). This bar is reciprocated through the medium of a pitman 64 which is connected to a crank 65 secured to a shaft 66. The latter is journaled in a bearing on the base castin and carries at its forward end a bevel-pin1on66 (Fig. 1) in mesh with a bevel wheel 67 upon the drive shaft 100, the latter being operatively connected as usual with the full stroke sector 311. The slide bar 62 normally occupies its right-hand position as viewed from the rear of the machine, Fig. 3. The initial stroke ofv the prime mover throws the crank 65 over ahalf turn and slides the bar to the left. I Then in the final or return stroke of the prime mover the crank 65 is turned back again so that the dog or pawl 61 is moved in a direction to propel the carriage in the tabulating'direction, 5. e., from right to left as the'machine is viewed from the front. Of course the tabulating arrangement can be varied indefinitely as to the number of columnar positions that the carriage is to occupy and the spacing apart of columns, .equi ment here shown in that regard beiiigmere y a typical one. Four of the controlling fingers are shown mounted upon the rod 60 and only the two intermediate ones, designated 70 and 70, are operated upon by the dog or pawl (31 to propel the carriage, so that only three columnar positions are provided for. Normally with the carriage farthest to the right as viewed from the front the stop finger 71 is adjacent the pawl (51, as shown in Fig. 20. When the bar 62 1s then operated the said pawl will be carried past the finger 70 and upon return of the bar will act upon that finger and propel the carr1a e to the new columnar position (Fig. 10). n the next operation the pawl will be carried past the finger 70 and will then act upon that finger and propel the carriage to the next columnar position (Fig. 3). A suitable spring (contained in a spring-barrel 170 dotted lines Fig. 3 connected by a band 170 with the carriage) is employed to return the carriage and of course when propelled in opposition to said spring means must be provided for holding the carriage at each columnar positionto which it is moved by the pawl 61. To this end a detent 72 is pivoted on the back panel and formed to engage the fingers 70 and 70. It is also desirable to provlde some sort of a buffer to prevent overrunning of the carriage when pro pelled by the pawl. To this end an abutment piece 74 is provided (Fig. 10) against which the fingers 70 and '70 strike. Said abutment piece is pivoted to a buffer plate 75 arranged to slide on bolts 2 secured to the back panel 2 and being held to the left as the parts are viewed in Fig. 10, by a pair of springs 7 6. The pivoting of the abutment piece 74 is necessary in order to provide for its moving out of the path of the fingers to permit them to pass when the carriage is shifted to a new columnar position. The abutment piece is yieldingly held in effective position by a spring 77 which connects a depending branch thereof with the upper portion of a tappet piece 78 pivoted upon the abutment piece 74. This tappet piece has a depending arm 78 which engages a lug 74 on the aforesaid depending branches of the abutment piece, and also has horizontal arm with a downwardly projecting lug 7 8 resting upon an ear 89 of a vertical plate 89 Fig. 11. The latter is a familiar element in machines of this type and forms part of the line pacing mechanism, being reciprocated in every operation of the machine. It moves downward during the initial stroke of the prime mover and the tappet piece 78 follows it by gravity and the abutment piece 74 necessarily drops as though integral with the tappet piece 78. Therefore, at the end of the initial stroke of the prime mover the condition is as illustrated in Fig. 14. Downward movement of the tappet piece and abutment piece is limited by abutment of an ear 7 4" on the abutment piece against a stud 2" on the back panel, and the ear 89 moves on down. Therefore in the return stroke of the prime mover the pawl 61 has time to move the last positioned tabulator finger on beyond the abutment piece 74 before the latter is lifted to meet the oncoming finger. Then too it will be noted that the spring 77 will yield should the abutment piece happen to strike the passing finger, though the primary function of this spring is to permit the tabulating fingers to ride over the abutment piece when the carriage is returning to normal. Gravity is not wholly relied upon to lower the abutment piece, but it is formed with a cam lug 74 which is acted upon by the lever 92 which lowers the plate 89, as illustrated in Fig. 14.

Automatic return of the carw'aga-Jn order to effect the automatic return of the carriage it is of course essential that the pawl (31 and detent 72 shall botlrbe withdrawn from the paths of the fingers 70 and 70. This is controlled by the remaining finger 70*. When the carriage is positioned by the finger 70, as shown in Fig. 14, said finger 7 0 is in position to engage the pawl when the latter is retracted during the initial stroke of the prime mover. A latch plate 80 is pivoted to the bar 62 and normally holds the pawl 61 up in acting position. Thus said latch plate is notched to receive a lower portion of the pawl (Fig. 10) having a V-formation 61, andthe latch at one side of the notch has a similar formation 80. When the pawl wipes under either of the fingers 70 and 70 its rocking is not sufiicient to carry the point of its V- shaped portion 61' past the point of the V- shaped portion 80 of the latch plate 80, consequently the pawl restores under action of the spriplg 81 which connects it to the latch plate. owever, when the pawl wipes under the deeper finger 70 it is rocked far enough to carry its V-point past the V-point of the latch plate 80, and then the pawl is moved farther down by the spring 81 to the position shown in Fig. 14 by reason of the camming action betweenthe engaged inclines. This occurs during the initial stroke of the prime mover when the carriage must still be held in position, for the printing occurs just at the end of that initial stroke. The complete release of the carriage occurs during the back stroke and toward the close of the same and is brought about through a tripping of the detent 7 2 by the pawl 61 in its latched down position just as the latter reaches the end of its excursion which ac companies such back stroke of the operating handle. The tail of the detent 72 overlies a stud 82 upon a rocker plate 73 pivoted to the back panel and having an offset branch adapted to be acted upon by an ear 61 displacing position.

eration is illustrated by Fig. 17 where the condition illustrated is such as to release the carriage and permit its return.

When the carriage has returned the pawl 61 should be released so as to be able to resume its work of ropelling the carriage from colurrn to co umn. To this end an abutment piece 85 is pivoted to the latch plate 80 and held against the latters hub by a sprin 86. This abutment piece has an ear 85 which is adapted to be struck by a depending lu 71 on the hub of the finger 71, Fig. 19. n this way the latch plate 80 is forced back until the point of its V-shaped portion passes the point of the V-shaped portion of the pawl 61, whereupon the latter springs up to normal position.

In order to guard against the possibility of the detent 72 restoring before the carriage returns (as might be the case if the carriage stuck and the machine was again operated, retracting thepawl 61 and thereby releasing the detent), a latch is provided for the plate 73. This latch isin the form of a weighted plate 86 pivoted on the stud 82 and formed with a right angled slot 86 engaging a stud 2 on the back panel. Normally the stud is in "the upper part of the slot, as shown in Fig. 14. However, when the late 73 is rocked by the ear 61 of the pawl 61, the latch plate 86' of course moves and the arrangement is such that the widened lower part of the slot comes into engagement with the stud 2, the latch plate dropping to the position illustrated in Fig. 17, where it holds the late 73 in its detentbranch 86 of said latch plate 86 is offset to come in line with the ear 61 of the pawl. When the latter is released by the return of the carriage to normal it is in its right-hand position as the machine is viewed from the rear and its said ear stands over the offset branch 86 of the latch so that the tilting of the pawl swings said latch and releases the plate 73 and the detent 72 will rise until it strikes the finger 71.

In order to cushion the impact resulting from the rapid return of the carriage under spring action, a bufi'er plate 171 is mounted upon the back panel 2, being slotted to engage the beforementioned bolts 2 secured in said panel. This late lies between the panel and the other uifer plate 75 before described, and the same springs 76 serve as the cushioning means, said springs being stretched between cross arms on the two plates, as clearly shown in Figs. 3, 10 and 14. Said plate 171 is offset to extend across just in rear of the line spacing plates 87 and 89, Fig. 1, and has a terminal lug 171 for the carriage finger 71 to strike as illustrated in Figs. 19 and 20, it bein understood that said finger projects fart er forward than Line-spacing mechanism-it will be understood that in order to do cross tabulating, which involves printing one item after another along a horizontal line, thereshould be no line spacing except between horizontal series of items. Consequently, in the machine here shown, the line-spacing mechanism is disabled except when the machine is in the final columnar position. I have already mentioned the line-spacing plates 87 and 89 which are of similar character to plates correspondingly designated in aforesaid Patent 924,118, and I have already had occasion to describe the plate 89 as reciprocated in every operation of the machine, this being brought about as usual through the medium of the lever 92 and the cam 92 carried by the shaft 100 (Fi 1). The said plate 89 has fingers 89" whic project under the cross rod 84 of the usual line-spacing bail such as that similarly designated in said last-mentioned patent, and the other plate 87 has flanges 87 notched to engage said cross rod, as also shown in said patent. It will be understood that only when the two plates reciprocate together is there any linespacing action, for otherwise the fingers 89 simply lower away from the cross rod of the line-spacing bail. Operative connection between the two (plates for line-spacing purposes is effects through the medium of a dog 173 which is pivoted to a lower ofi-set portion of the plate 87, (Fig. 14), and is connected to a stop stud p thereon by a spring 17 4 which tends to establish the linespacing connection. Thus the dog has a forwardly turned ear 173 to engage under a flange 89 which projects rearwardly from a lateral extension of the plate 89. The dog is controlled by a depending arm 72 of the detent plate 72, said arm engaging an elongated flange 173 on the upper arm of the dog. Whether the dog and plate 89 are operatively engaged depends upon the character of engagement between thesaid detent plate and the carriage fingers. Thus, if the fingers are of such dimensions as to limit the rise of the detent plate, the dog will be restrained, as shown, for example, in Fig. 12, so that its ear 173 is out of line with the flange 89, and the plate 89 will pass down without affecting the plate 87. This isthe case when the carriage is in its normal position, for then the lower part of a beveled surface 71 of the finger 71 engages a corner of the detent plate 2, as illustrated in Fig. 20, holding that plate so far down that its arm 7 2 prevents the dog from moving to engaging position. So in the case of the stop finger the detent plate is prevented from rising beyond a position in which it holds the dog displaced, as shown in Fig. 12. However, the stop fin er 7 0 is of less dimension vertically than t e stop finger 70 or the finger 71, and therefore permits the detent plate to move farther up as shown in Fig. 14, and in this case the arm 72 swings over far enough to permit the dog to engage with the flange of the plate 89. Consequently when the plate 89 lowers during the initial stroke of the prime mover, the plate 87 1s carried along with 'it and line-spacing pawl 175 is retracted and engaged with the roller platen ratchet 176, so that in the return stroke of the prime mover line-spacing will occur. In order to insure against any accidental lowering of the plate 87 the spring 7 2, which serves to enforce engagement between the detent plate 7 2 and the carriage stops, is connected to an arm 87 of the plate 87, thus tending at all times to hold the latter plate up.

The above described tabulating mechanism is the same in general principle of operation as that disclosed in the aforesaid Benner Patent, No. 1,046,546. The general purposes of the variations that I have made from the Benner construction are to make the action more certain; to make the assembling of parts better adapted to varying conditions, such, for example, as conditions brought about through varying widths of machines; and to simplify as far as possible, both by reducing the number of parts and adopting shapes of parts conducing to greater economy and facility in manufacture.

Reviewing the several changes that I have made from the Benner construction, there is the latch 86 for the rocking plate 73, the main purpose and function of which has already been explained, but whlch subserves an incidental purpose of avoiding the necessity for a centralizing spring for the plate which, in my construction, is held at normal by the Weight of the latch. Then there is the new form of latch for the carriage propelling pawl 61, which has the advantage of more certainly and securely controlling the pawl, since it permits some range of relative positioning of latch and pawl without disturbing the proper adjustment of the pawl. Thus when the latch has been thrown back to permit restoration of the pawl to the normal positionshown in F 1g. 10, it may remain rocked over or tilted beyond such position as there illustrated, without impairing the action at all, for, in such case, the

concentric edge 0 of the latch would simply ride along the engaged edge of the pawl without affecting the adjustment of the latter. Therefore a slight variation in the positioning of the terminal finger 71 will not result in any erratic performance of the mechanism. In this same connection it may be noted that the occasion for pivoting the tappet piece 85 upon the latch is to provide for the passing by of the finger 71 should the carriage be set over so far to the right for some special work in hand asto locate said finger beyond the flange 85 of said tappet piece. It will be understood that, as in prior tabulating machines of this same type the carriage rod 60 is journaled in the em plates 170 (Fig. 3), and operatively' connected to a handle 60 so that the operator may at any time disengage the carriage from the tabulating mechanism and move it to any position within the range of its lateral travel eitherway. A minor change to be noted is the doing away with a separate cam piece fixed to the pawl for coaction with the right-hand terminal finger, said finger in my construction cooperating directly with the pawl. It may be also noted that said finger is beveled on the under side, as illustrated in Fig. 14, for the purpose of preventing a lock-up by engagement of the end edge of the pawl with the right hand side of the finger in the event of the movement of the carriage by hand so far to the left as to carry said finger past the end of the pawl. Other new features are the cushioning of the abutment piece 74 which limits the throw of the carriage under propulsion by the pawl, and the simplified arrangement for preventing accidental lowering of the linespacing plate 87, a single spring 72 serving this purpose besides performing the function of enforcing engagement of the detent 7'2 with the tabulating fingers.

Variable split or cipher wt-0ut.The printing mechanism proper is the same as in the familiar Burroughs machine, comprising hammers 715, hammer driving levers 716, hammer restraining latches or detents 717, and latch tripping pawls 718 which cooperate in the familiar way with the typecarrying levers 611. The construction which is shown for coupling and uncoupling latches and detents is also a familiar one (seefor example Patent No. 1,013,910, issued January 9th, 1912, on the invention of Jesse G. Vincent). Pivoted to each latch, except the farthest one to the right which is for special printing purposes, is a pitman 717 (Fig. 9), and pivoted upon each pitman is a catch 717". The catches have lugs I) extending to the left and the pitmen have shoulders a to act upon said lugs for the purpose of transmitting movement from one detent 717 to another. In this way ciphers are filled in automatically'according to the wellknown system in machines of this t pe. The coiiperative relationship between atches is normally enforced by springs 717 which hold the pivoted catches 717 up in engage- .ment with the pitmen to the left. Obviously the cooperative action can be suspended by disengaging the catches from the pitmen, and, in the present instance, as in prior constructions, this is accomplished by the set- III ting of a rotary rod or shaft "('17 which carries lugs d variously located around the shaft and variously positioned lengthwise thereof. The shaft carries a gear pinion 90 at its left-hand end (Figs. 6 and 8), which meshes with a gear sector 91. Ordinarily the latter is simply connected to an index hand at the front of the machine in such a way as to be rocked by the swinging of said hand, and such equipment is provided in the present machine, but in addition to it, there is an equipment through which the sector may be automatically moved as the paper carriage shifts, so that one sort of split will be established when the carriage is in one columnar position and a different sort of split when the carriage is in another columnar position, without the necessity of any special manipulation between times.

The numeral 190 designates the index hand located at the front of the machine (Fig. 7), and working over a fixed index plate 193 inscribed with a series of numerals N to denote the different adjustments of the lug-bearing shaft 717 to effect the variety of splits as they may be established by the setting of said index hand, the left hand pointer 190 serving in this connection. The hand is secured, as usual, to the forward end of a rock shaft 94 journaled in the base casting of the machine and having fastened to it on the interior an arm 94" (Figs. 1, 7 and 8), to which is coupled a link 95 extending up for connection with the segment 91. In the present instance, this link 1s not directly connected to said segment as heretofore, but carries a stud 95 which occupies an arc-shaped slot 91 in an arm 91 which is fastened to the hub of the segment, as shown in Fig. 6. The se ment is normally upheld by a spring 91 (Flg. 8) and the said stud normally occupies the lower end of the slot, so that in the absence of any other devices the segment would simply move in unison with the stud and the effect would be the same as in prior constructions, where the link is directly connected to the segment.

The special connection above described between the index hand and the segment provides for movement of the later inde pendent of the index hand, as when chan ing the point or points of split automatical y in the shifting of the carriage. To this end, the arm 91 has a rearward branch 91 formed with a series of ratchet teeth 91 (six in the present instance), and a pawl 96 is arranged to act upon sa1d ratchet teeth one at a time to move the segment 91 and set the shaft 717 Figs. 1 and 8 show the normal condition wherein said pawl engages the second of the ratchet teeth counting from the upper end of the series, the first tooth being engaged by a restraining pawl 97, which is adapted to hold the segment at different positions to which it is moved by the actuating pawl 96. The latter is pivotally mounted upon the forwardly extending branch of a rocking plate 98 which is journaled upon shaft 501this being one of the familiar rock shafts of the machine proper. The familiar ink ribbon feeding lever 516, secured to said shaft 501, is in the present instance provided with a stud 3 which works between the forks 98 and 98 of the bifurcated portion of the rocking plate 98. Normally the stud is in engagement with the rear fork, as shown in Fig. 8, so that the pawl 96 is elevated. As the prime mover ends its initial stroke, said stud will act upon the forward fork and rock the plate so as to carry the pawl back over one of the ratchet teeth 91. Then 'as the prime mover completes its final or return stroke, the stud will again act upon the rear fork, drive the pawl upward and cause it to rock the segment 91. A spring 96 connecting the rocking plate and pawl enforces engagement between the latter and the ratchet teeth, and the movement for setting the segment is limited by abutment of a rear branch 98 of the rocking plate against a fixed stud w.

It will be understood, of course, that when the segment is set by the turning of the index hand 190, the ratchet teeth 91 simply click past the pawls 96 and 97, but that when the automatic spliting operation is going on said index arm remains stationary, the slot 91 simply traveling along the stud 95. It will be obvious therefore that the automatic effects can be varied by first setting the index arm. In the present instance the rod 717 is shown with six splitting lugs, and is therefore designed to be set at six different positions. In a machine of the large denominational capacity here shown (seventeen banks or rows of keys, Fig. 6) it is. preferable to have a normalsplit and it will be noted that with the index handle all the way over to the left a split is effected between the eighth and ninth orders counting from the left, Fig. 6. See also Fig. 9. With the index hand 190 left at normal, as at Fig. 7, and the automatic splitting mechanism operable, obviously in the five successive operations of the machine following an original operation which effects the first setting of the shaft 717, the five different splitting conditions obtainable by the particular location of lugs upon said shaft would be successively established. Preferably a separate scale is inscribed upon the plate 193 for the automatic splitting and it does not provide for the maximum variety of effects because this would not likely be called for in the doing of cross-tabulating work. Referring to Fig. 7, the index arm 190 has a second pointer 190 which works in conjunction with a scale consisting of but three numerals, 1, 2 and 3, inscribed at the right-hand portion of 

